Valve.



PATBNTED FEB. 11, 190s;

J. G. RANDAXHB.

VALVE.

APPLICATION IjILBD JAN. 2, 1906.

y ingto be a full, clear;

JEAN GUILLAUME RANDAXHE, OF LIEGE, BELGIUM.

VALVE.

Specification of Letters Patent.

Patented Feb. 11, 1908.

plicmon sled January 2.1906. serio No. v294.332.

To all whom 'it may concern."

Be it known that I, J EAN GUILLAUME RANDAXHE, a subject of theKingdom of Belgium, residing in Liege, Kingdom of'Belg'um; 53 Quai de Longdoz, have invented. certain new and useful Improvements in and Relating"` to Valves; and Ido herebydeclare the followand exact description such as will enable others skilled in 'the art to which it appertains to make and use the same, reference being had Ato the accompanying drawings, and to letters or figures of reference markedtherein, which form a part of this specification.

The object of the present invention is to provide a valve closure which will be tight at igh and low pressure for all fluids, such as for example,lsteam whether superheated or of the invention,

, notwater orair, etc.

The invention consists in providing a plurality of thin superposedsheet metal dlsks forming an elastic metallic surface. These disks are held together at the center by means ci' a screw and nut and at the circumference by means of a shouldered socket which latter may be adjusted to provide for a larger or smaller number ,of disks. The closure is kept air tight by ressing the metallic elastic cushion on the lat edge of a valve seat.

The annexed drawing shows a vertical sectional view of a valve seat, and a valve constructed according to my invention.

Referring to the drawing, 1 (.lesignates a well known form of valve-ste; comiected to a head 2 in such mannerthat t 1e former may be rotated without imparting its movement to the latter. The example shown for connecting to two yparts consists in providing a cylindrical bore tl in the head to receive the end of' the stem ln the wall of the bore' and in the periphery of the stem are formed. annular grooves c and b rcspcctivply, which cooperate and form a racc-way for balls c. These balls may be inserted alterthe stern is in place in any suitable way as'for instance through a bore (not shown) in the head com# municating with the groove a.

Protruding from the head in line withY the axis ofthe steril is a screw( 6 on ,which is mounted a plurality of thin su perposed metal disks 9. These disks are of smaller diameter than the head and are held inplace against the end of the head by a nut 7 which latter is locked by a jam-nut 8.

After the disks have been locked onto the head in the manner described they are fur- \ther secured b, a socket 5 which is screwed onto the periphery of the head said socket having an internal flange adapted to take over and enga e the rim ofthe outerdisk.

On closing tie valve, the washers bear o n the seat 3 fixed to the body 4 of the valve casing or the like and effect the required closure.

The nature of the metal oi4 which the disks valve is intended to be put.

As above stated and as clearly shown in the drawing the diameter of the disks isless than the'diameterI of theliead2 so that when the socket 5 is screwed on the head' there is an annular space formed between e-inner peri hery of the socket and `the peripheries of t 1e disks. This space permits afree ex pansion of the disks to take place when these become overheatedas will be the case when superheated steam is being used. If no s ace is provided, and an. `expansion of the t isks takes place, a buckling of thedisks will ncessarilyresult and aprop'er closure of the valve can not be'had.

,T claim :4-

l a valve head, a flanged socket adjustably mounted thereon, and a pluralit of thin flat metal disks supported bythe ange of the socket and of smaller diameter than Vthe valve head thereby affording an annular space between their peripher and the inner periphery of the socket to al ow free expaning, and ymeans to centrally secure the disks ,i to the valve head.

In' testimony that'I claim `the foregoing as fitnessesz GEORGES VANDER HAEJHEN, LEONARD LEVER.

In a valve, the combination with a seat, of

my invention, I have signed my name in are made depends on the use to which the sion of the disks under all conditions of. `work 

